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Comparing libev/ev.c (file contents):
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs.
Revision 1.154 by root, Wed Nov 28 11:53:37 2007 UTC

… …
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
31#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
32# include "config.h" 40# include "config.h"
41# endif
33 42
34# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
44# ifndef EV_USE_MONOTONIC
35# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
46# endif
47# ifndef EV_USE_REALTIME
36# define EV_USE_REALTIME 1 48# define EV_USE_REALTIME 1
49# endif
50# else
51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0
53# endif
54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0
56# endif
37# endif 57# endif
38 58
59# ifndef EV_USE_SELECT
39# if HAVE_SELECT && HAVE_SYS_SELECT_H 60# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1 61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
41# endif 65# endif
42 66
67# ifndef EV_USE_POLL
43# if HAVE_POLL && HAVE_POLL_H 68# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1 69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
45# endif 73# endif
46 74
75# ifndef EV_USE_EPOLL
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1 77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
49# endif 81# endif
50 82
83# ifndef EV_USE_KQUEUE
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1 85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
97# endif
98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
53# endif 105# endif
54 106
55#endif 107#endif
56 108
57#include <math.h> 109#include <math.h>
… …
66#include <sys/types.h> 118#include <sys/types.h>
67#include <time.h> 119#include <time.h>
68 120
69#include <signal.h> 121#include <signal.h>
70 122
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
71#ifndef WIN32 129#ifndef _WIN32
72# include <unistd.h>
73# include <sys/time.h> 130# include <sys/time.h>
74# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
133#else
134# define WIN32_LEAN_AND_MEAN
135# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1
75#endif 138# endif
139#endif
140
76/**/ 141/**/
77 142
78#ifndef EV_USE_MONOTONIC 143#ifndef EV_USE_MONOTONIC
79# define EV_USE_MONOTONIC 1 144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
80#endif 149#endif
81 150
82#ifndef EV_USE_SELECT 151#ifndef EV_USE_SELECT
83# define EV_USE_SELECT 1 152# define EV_USE_SELECT 1
84#endif 153#endif
85 154
86#ifndef EV_USE_POLL 155#ifndef EV_USE_POLL
87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
88#endif 161#endif
89 162
90#ifndef EV_USE_EPOLL 163#ifndef EV_USE_EPOLL
91# define EV_USE_EPOLL 0 164# define EV_USE_EPOLL 0
92#endif 165#endif
93 166
94#ifndef EV_USE_KQUEUE 167#ifndef EV_USE_KQUEUE
95# define EV_USE_KQUEUE 0 168# define EV_USE_KQUEUE 0
96#endif 169#endif
97 170
171#ifndef EV_USE_PORT
172# define EV_USE_PORT 0
173#endif
174
98#ifndef EV_USE_WIN32 175#ifndef EV_USE_INOTIFY
99# ifdef WIN32 176# define EV_USE_INOTIFY 0
100# define EV_USE_WIN32 0 /* it does not exist, use select */ 177#endif
101# undef EV_USE_SELECT 178
102# define EV_USE_SELECT 1 179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
103# else 182# else
104# define EV_USE_WIN32 0 183# define EV_PID_HASHSIZE 16
105# endif 184# endif
106#endif 185#endif
107 186
108#ifndef EV_USE_REALTIME 187#ifndef EV_INOTIFY_HASHSIZE
109# define EV_USE_REALTIME 1 188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
110#endif 193#endif
111 194
112/**/ 195/**/
113 196
114#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
… …
119#ifndef CLOCK_REALTIME 202#ifndef CLOCK_REALTIME
120# undef EV_USE_REALTIME 203# undef EV_USE_REALTIME
121# define EV_USE_REALTIME 0 204# define EV_USE_REALTIME 0
122#endif 205#endif
123 206
207#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h>
209#endif
210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
124/**/ 219/**/
125 220
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
130
131#include "ev.h"
132 224
133#if __GNUC__ >= 3 225#if __GNUC__ >= 3
134# define expect(expr,value) __builtin_expect ((expr),(value)) 226# define expect(expr,value) __builtin_expect ((expr),(value))
227# define inline_size static inline /* inline for codesize */
228# if EV_MINIMAL
135# define inline inline 229# define noinline __attribute__ ((noinline))
230# define inline_speed static noinline
231# else
232# define noinline
233# define inline_speed static inline
234# endif
136#else 235#else
137# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
237# define inline_speed static
138# define inline static 238# define inline_size static
239# define noinline
139#endif 240#endif
140 241
141#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
142#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
143 244
144#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145#define ABSPRI(w) ((w)->priority - EV_MINPRI) 246#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146 247
248#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
249#define EMPTY2(a,b) /* used to suppress some warnings */
250
147typedef struct ev_watcher *W; 251typedef ev_watcher *W;
148typedef struct ev_watcher_list *WL; 252typedef ev_watcher_list *WL;
149typedef struct ev_watcher_time *WT; 253typedef ev_watcher_time *WT;
150 254
151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152 256
257#ifdef _WIN32
153#include "ev_win32.c" 258# include "ev_win32.c"
259#endif
154 260
155/*****************************************************************************/ 261/*****************************************************************************/
156 262
157static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
158 264
265void
159void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
160{ 267{
161 syserr_cb = cb; 268 syserr_cb = cb;
162} 269}
163 270
164static void 271static void noinline
165syserr (const char *msg) 272syserr (const char *msg)
166{ 273{
167 if (!msg) 274 if (!msg)
168 msg = "(libev) system error"; 275 msg = "(libev) system error";
169 276
… …
174 perror (msg); 281 perror (msg);
175 abort (); 282 abort ();
176 } 283 }
177} 284}
178 285
179static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, size_t size) = realloc;
180 287
288void
181void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, size_t size))
182{ 290{
183 alloc = cb; 291 alloc = cb;
184} 292}
185 293
186static void * 294inline_speed void *
187ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, size_t size)
188{ 296{
189 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc (ptr, size);
190 298
191 if (!ptr && size) 299 if (!ptr && size)
192 { 300 {
193 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 301 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size);
194 abort (); 302 abort ();
195 } 303 }
196 304
197 return ptr; 305 return ptr;
198} 306}
… …
205typedef struct 313typedef struct
206{ 314{
207 WL head; 315 WL head;
208 unsigned char events; 316 unsigned char events;
209 unsigned char reify; 317 unsigned char reify;
318#if EV_SELECT_IS_WINSOCKET
319 SOCKET handle;
320#endif
210} ANFD; 321} ANFD;
211 322
212typedef struct 323typedef struct
213{ 324{
214 W w; 325 W w;
215 int events; 326 int events;
216} ANPENDING; 327} ANPENDING;
217 328
329typedef struct
330{
331#if EV_USE_INOTIFY
332 WL head;
333#endif
334} ANFS;
335
218#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
219 337
220 struct ev_loop 338 struct ev_loop
221 { 339 {
340 ev_tstamp ev_rt_now;
341 #define ev_rt_now ((loop)->ev_rt_now)
222 #define VAR(name,decl) decl; 342 #define VAR(name,decl) decl;
223 #include "ev_vars.h" 343 #include "ev_vars.h"
224 #undef VAR 344 #undef VAR
225 }; 345 };
226 #include "ev_wrap.h" 346 #include "ev_wrap.h"
227 347
228 struct ev_loop default_loop_struct; 348 static struct ev_loop default_loop_struct;
229 static struct ev_loop *default_loop; 349 struct ev_loop *ev_default_loop_ptr;
230 350
231#else 351#else
232 352
353 ev_tstamp ev_rt_now;
233 #define VAR(name,decl) static decl; 354 #define VAR(name,decl) static decl;
234 #include "ev_vars.h" 355 #include "ev_vars.h"
235 #undef VAR 356 #undef VAR
236 357
237 static int default_loop; 358 static int ev_default_loop_ptr;
238 359
239#endif 360#endif
240 361
241/*****************************************************************************/ 362/*****************************************************************************/
242 363
243inline ev_tstamp 364ev_tstamp
244ev_time (void) 365ev_time (void)
245{ 366{
246#if EV_USE_REALTIME 367#if EV_USE_REALTIME
247 struct timespec ts; 368 struct timespec ts;
248 clock_gettime (CLOCK_REALTIME, &ts); 369 clock_gettime (CLOCK_REALTIME, &ts);
… …
252 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
253 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
254#endif 375#endif
255} 376}
256 377
257inline ev_tstamp 378ev_tstamp inline_size
258get_clock (void) 379get_clock (void)
259{ 380{
260#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
261 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
262 { 383 {
… …
267#endif 388#endif
268 389
269 return ev_time (); 390 return ev_time ();
270} 391}
271 392
393#if EV_MULTIPLICITY
272ev_tstamp 394ev_tstamp
273ev_now (EV_P) 395ev_now (EV_P)
274{ 396{
275 return rt_now; 397 return ev_rt_now;
276} 398}
399#endif
277 400
278#define array_roundsize(type,n) ((n) | 4 & ~3) 401#define array_roundsize(type,n) (((n) | 4) & ~3)
279 402
280#define array_needsize(type,base,cur,cnt,init) \ 403#define array_needsize(type,base,cur,cnt,init) \
281 if (expect_false ((cnt) > cur)) \ 404 if (expect_false ((cnt) > cur)) \
282 { \ 405 { \
283 int newcnt = cur; \ 406 int newcnt = cur; \
… …
298 stem ## max = array_roundsize (stem ## cnt >> 1); \ 421 stem ## max = array_roundsize (stem ## cnt >> 1); \
299 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 422 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
300 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 423 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
301 } 424 }
302 425
303/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
304/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
305#define array_free_microshit(stem) \
306 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
307
308#define array_free(stem, idx) \ 426#define array_free(stem, idx) \
309 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 427 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
310 428
311/*****************************************************************************/ 429/*****************************************************************************/
312 430
313static void 431void noinline
432ev_feed_event (EV_P_ void *w, int revents)
433{
434 W w_ = (W)w;
435
436 if (expect_false (w_->pending))
437 {
438 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
439 return;
440 }
441
442 w_->pending = ++pendingcnt [ABSPRI (w_)];
443 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
444 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
445 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
446}
447
448void inline_size
449queue_events (EV_P_ W *events, int eventcnt, int type)
450{
451 int i;
452
453 for (i = 0; i < eventcnt; ++i)
454 ev_feed_event (EV_A_ events [i], type);
455}
456
457/*****************************************************************************/
458
459void inline_size
314anfds_init (ANFD *base, int count) 460anfds_init (ANFD *base, int count)
315{ 461{
316 while (count--) 462 while (count--)
317 { 463 {
318 base->head = 0; 464 base->head = 0;
… …
321 467
322 ++base; 468 ++base;
323 } 469 }
324} 470}
325 471
326void 472void inline_speed
327ev_feed_event (EV_P_ void *w, int revents)
328{
329 W w_ = (W)w;
330
331 if (w_->pending)
332 {
333 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
334 return;
335 }
336
337 w_->pending = ++pendingcnt [ABSPRI (w_)];
338 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
339 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
340 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
341}
342
343static void
344queue_events (EV_P_ W *events, int eventcnt, int type)
345{
346 int i;
347
348 for (i = 0; i < eventcnt; ++i)
349 ev_feed_event (EV_A_ events [i], type);
350}
351
352inline void
353fd_event (EV_P_ int fd, int revents) 473fd_event (EV_P_ int fd, int revents)
354{ 474{
355 ANFD *anfd = anfds + fd; 475 ANFD *anfd = anfds + fd;
356 struct ev_io *w; 476 ev_io *w;
357 477
358 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 478 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
359 { 479 {
360 int ev = w->events & revents; 480 int ev = w->events & revents;
361 481
362 if (ev) 482 if (ev)
363 ev_feed_event (EV_A_ (W)w, ev); 483 ev_feed_event (EV_A_ (W)w, ev);
… …
368ev_feed_fd_event (EV_P_ int fd, int revents) 488ev_feed_fd_event (EV_P_ int fd, int revents)
369{ 489{
370 fd_event (EV_A_ fd, revents); 490 fd_event (EV_A_ fd, revents);
371} 491}
372 492
373/*****************************************************************************/ 493void inline_size
374
375static void
376fd_reify (EV_P) 494fd_reify (EV_P)
377{ 495{
378 int i; 496 int i;
379 497
380 for (i = 0; i < fdchangecnt; ++i) 498 for (i = 0; i < fdchangecnt; ++i)
381 { 499 {
382 int fd = fdchanges [i]; 500 int fd = fdchanges [i];
383 ANFD *anfd = anfds + fd; 501 ANFD *anfd = anfds + fd;
384 struct ev_io *w; 502 ev_io *w;
385 503
386 int events = 0; 504 int events = 0;
387 505
388 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 506 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
389 events |= w->events; 507 events |= w->events;
390 508
509#if EV_SELECT_IS_WINSOCKET
510 if (events)
511 {
512 unsigned long argp;
513 anfd->handle = _get_osfhandle (fd);
514 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515 }
516#endif
517
391 anfd->reify = 0; 518 anfd->reify = 0;
392 519
393 method_modify (EV_A_ fd, anfd->events, events); 520 backend_modify (EV_A_ fd, anfd->events, events);
394 anfd->events = events; 521 anfd->events = events;
395 } 522 }
396 523
397 fdchangecnt = 0; 524 fdchangecnt = 0;
398} 525}
399 526
400static void 527void inline_size
401fd_change (EV_P_ int fd) 528fd_change (EV_P_ int fd)
402{ 529{
403 if (anfds [fd].reify) 530 if (expect_false (anfds [fd].reify))
404 return; 531 return;
405 532
406 anfds [fd].reify = 1; 533 anfds [fd].reify = 1;
407 534
408 ++fdchangecnt; 535 ++fdchangecnt;
409 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
410 fdchanges [fdchangecnt - 1] = fd; 537 fdchanges [fdchangecnt - 1] = fd;
411} 538}
412 539
413static void 540void inline_speed
414fd_kill (EV_P_ int fd) 541fd_kill (EV_P_ int fd)
415{ 542{
416 struct ev_io *w; 543 ev_io *w;
417 544
418 while ((w = (struct ev_io *)anfds [fd].head)) 545 while ((w = (ev_io *)anfds [fd].head))
419 { 546 {
420 ev_io_stop (EV_A_ w); 547 ev_io_stop (EV_A_ w);
421 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 548 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
422 } 549 }
423} 550}
424 551
425static int 552int inline_size
426fd_valid (int fd) 553fd_valid (int fd)
427{ 554{
428#ifdef WIN32 555#ifdef _WIN32
429 return !!win32_get_osfhandle (fd); 556 return _get_osfhandle (fd) != -1;
430#else 557#else
431 return fcntl (fd, F_GETFD) != -1; 558 return fcntl (fd, F_GETFD) != -1;
432#endif 559#endif
433} 560}
434 561
435/* called on EBADF to verify fds */ 562/* called on EBADF to verify fds */
436static void 563static void noinline
437fd_ebadf (EV_P) 564fd_ebadf (EV_P)
438{ 565{
439 int fd; 566 int fd;
440 567
441 for (fd = 0; fd < anfdmax; ++fd) 568 for (fd = 0; fd < anfdmax; ++fd)
… …
443 if (!fd_valid (fd) == -1 && errno == EBADF) 570 if (!fd_valid (fd) == -1 && errno == EBADF)
444 fd_kill (EV_A_ fd); 571 fd_kill (EV_A_ fd);
445} 572}
446 573
447/* called on ENOMEM in select/poll to kill some fds and retry */ 574/* called on ENOMEM in select/poll to kill some fds and retry */
448static void 575static void noinline
449fd_enomem (EV_P) 576fd_enomem (EV_P)
450{ 577{
451 int fd; 578 int fd;
452 579
453 for (fd = anfdmax; fd--; ) 580 for (fd = anfdmax; fd--; )
… …
456 fd_kill (EV_A_ fd); 583 fd_kill (EV_A_ fd);
457 return; 584 return;
458 } 585 }
459} 586}
460 587
461/* usually called after fork if method needs to re-arm all fds from scratch */ 588/* usually called after fork if backend needs to re-arm all fds from scratch */
462static void 589static void noinline
463fd_rearm_all (EV_P) 590fd_rearm_all (EV_P)
464{ 591{
465 int fd; 592 int fd;
466 593
467 /* this should be highly optimised to not do anything but set a flag */ 594 /* this should be highly optimised to not do anything but set a flag */
… …
473 } 600 }
474} 601}
475 602
476/*****************************************************************************/ 603/*****************************************************************************/
477 604
478static void 605void inline_speed
479upheap (WT *heap, int k) 606upheap (WT *heap, int k)
480{ 607{
481 WT w = heap [k]; 608 WT w = heap [k];
482 609
483 while (k && heap [k >> 1]->at > w->at) 610 while (k && heap [k >> 1]->at > w->at)
… …
490 heap [k] = w; 617 heap [k] = w;
491 ((W)heap [k])->active = k + 1; 618 ((W)heap [k])->active = k + 1;
492 619
493} 620}
494 621
495static void 622void inline_speed
496downheap (WT *heap, int N, int k) 623downheap (WT *heap, int N, int k)
497{ 624{
498 WT w = heap [k]; 625 WT w = heap [k];
499 626
500 while (k < (N >> 1)) 627 while (k < (N >> 1))
… …
514 641
515 heap [k] = w; 642 heap [k] = w;
516 ((W)heap [k])->active = k + 1; 643 ((W)heap [k])->active = k + 1;
517} 644}
518 645
646void inline_size
647adjustheap (WT *heap, int N, int k)
648{
649 upheap (heap, k);
650 downheap (heap, N, k);
651}
652
519/*****************************************************************************/ 653/*****************************************************************************/
520 654
521typedef struct 655typedef struct
522{ 656{
523 WL head; 657 WL head;
… …
527static ANSIG *signals; 661static ANSIG *signals;
528static int signalmax; 662static int signalmax;
529 663
530static int sigpipe [2]; 664static int sigpipe [2];
531static sig_atomic_t volatile gotsig; 665static sig_atomic_t volatile gotsig;
532static struct ev_io sigev; 666static ev_io sigev;
533 667
534static void 668void inline_size
535signals_init (ANSIG *base, int count) 669signals_init (ANSIG *base, int count)
536{ 670{
537 while (count--) 671 while (count--)
538 { 672 {
539 base->head = 0; 673 base->head = 0;
… …
544} 678}
545 679
546static void 680static void
547sighandler (int signum) 681sighandler (int signum)
548{ 682{
549#if WIN32 683#if _WIN32
550 signal (signum, sighandler); 684 signal (signum, sighandler);
551#endif 685#endif
552 686
553 signals [signum - 1].gotsig = 1; 687 signals [signum - 1].gotsig = 1;
554 688
555 if (!gotsig) 689 if (!gotsig)
556 { 690 {
557 int old_errno = errno; 691 int old_errno = errno;
558 gotsig = 1; 692 gotsig = 1;
559#ifdef WIN32
560 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
561#else
562 write (sigpipe [1], &signum, 1); 693 write (sigpipe [1], &signum, 1);
563#endif
564 errno = old_errno; 694 errno = old_errno;
565 } 695 }
566} 696}
567 697
568void 698void noinline
569ev_feed_signal_event (EV_P_ int signum) 699ev_feed_signal_event (EV_P_ int signum)
570{ 700{
571 WL w; 701 WL w;
572 702
573#if EV_MULTIPLICITY 703#if EV_MULTIPLICITY
574 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 704 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
575#endif 705#endif
576 706
577 --signum; 707 --signum;
578 708
579 if (signum < 0 || signum >= signalmax) 709 if (signum < 0 || signum >= signalmax)
… …
584 for (w = signals [signum].head; w; w = w->next) 714 for (w = signals [signum].head; w; w = w->next)
585 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 715 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
586} 716}
587 717
588static void 718static void
589sigcb (EV_P_ struct ev_io *iow, int revents) 719sigcb (EV_P_ ev_io *iow, int revents)
590{ 720{
591 int signum; 721 int signum;
592 722
593#ifdef WIN32
594 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
595#else
596 read (sigpipe [0], &revents, 1); 723 read (sigpipe [0], &revents, 1);
597#endif
598 gotsig = 0; 724 gotsig = 0;
599 725
600 for (signum = signalmax; signum--; ) 726 for (signum = signalmax; signum--; )
601 if (signals [signum].gotsig) 727 if (signals [signum].gotsig)
602 ev_feed_signal_event (EV_A_ signum + 1); 728 ev_feed_signal_event (EV_A_ signum + 1);
603} 729}
604 730
605static void 731void inline_size
732fd_intern (int fd)
733{
734#ifdef _WIN32
735 int arg = 1;
736 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
737#else
738 fcntl (fd, F_SETFD, FD_CLOEXEC);
739 fcntl (fd, F_SETFL, O_NONBLOCK);
740#endif
741}
742
743static void noinline
606siginit (EV_P) 744siginit (EV_P)
607{ 745{
608#ifndef WIN32 746 fd_intern (sigpipe [0]);
609 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 747 fd_intern (sigpipe [1]);
610 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
611
612 /* rather than sort out wether we really need nb, set it */
613 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
614 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
615#endif
616 748
617 ev_io_set (&sigev, sigpipe [0], EV_READ); 749 ev_io_set (&sigev, sigpipe [0], EV_READ);
618 ev_io_start (EV_A_ &sigev); 750 ev_io_start (EV_A_ &sigev);
619 ev_unref (EV_A); /* child watcher should not keep loop alive */ 751 ev_unref (EV_A); /* child watcher should not keep loop alive */
620} 752}
621 753
622/*****************************************************************************/ 754/*****************************************************************************/
623 755
624static struct ev_child *childs [PID_HASHSIZE]; 756static ev_child *childs [EV_PID_HASHSIZE];
625 757
626#ifndef WIN32 758#ifndef _WIN32
627 759
628static struct ev_signal childev; 760static ev_signal childev;
629 761
630#ifndef WCONTINUED 762void inline_speed
631# define WCONTINUED 0
632#endif
633
634static void
635child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 763child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
636{ 764{
637 struct ev_child *w; 765 ev_child *w;
638 766
639 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 767 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
640 if (w->pid == pid || !w->pid) 768 if (w->pid == pid || !w->pid)
641 { 769 {
642 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 770 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
643 w->rpid = pid; 771 w->rpid = pid;
644 w->rstatus = status; 772 w->rstatus = status;
645 ev_feed_event (EV_A_ (W)w, EV_CHILD); 773 ev_feed_event (EV_A_ (W)w, EV_CHILD);
646 } 774 }
647} 775}
648 776
777#ifndef WCONTINUED
778# define WCONTINUED 0
779#endif
780
649static void 781static void
650childcb (EV_P_ struct ev_signal *sw, int revents) 782childcb (EV_P_ ev_signal *sw, int revents)
651{ 783{
652 int pid, status; 784 int pid, status;
653 785
786 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
654 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 787 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
655 { 788 if (!WCONTINUED
789 || errno != EINVAL
790 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
791 return;
792
656 /* make sure we are called again until all childs have been reaped */ 793 /* make sure we are called again until all childs have been reaped */
794 /* we need to do it this way so that the callback gets called before we continue */
657 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 795 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
658 796
659 child_reap (EV_A_ sw, pid, pid, status); 797 child_reap (EV_A_ sw, pid, pid, status);
798 if (EV_PID_HASHSIZE > 1)
660 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 799 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
661 }
662} 800}
663 801
664#endif 802#endif
665 803
666/*****************************************************************************/ 804/*****************************************************************************/
667 805
806#if EV_USE_PORT
807# include "ev_port.c"
808#endif
668#if EV_USE_KQUEUE 809#if EV_USE_KQUEUE
669# include "ev_kqueue.c" 810# include "ev_kqueue.c"
670#endif 811#endif
671#if EV_USE_EPOLL 812#if EV_USE_EPOLL
672# include "ev_epoll.c" 813# include "ev_epoll.c"
… …
689{ 830{
690 return EV_VERSION_MINOR; 831 return EV_VERSION_MINOR;
691} 832}
692 833
693/* return true if we are running with elevated privileges and should ignore env variables */ 834/* return true if we are running with elevated privileges and should ignore env variables */
694static int 835int inline_size
695enable_secure (void) 836enable_secure (void)
696{ 837{
697#ifdef WIN32 838#ifdef _WIN32
698 return 0; 839 return 0;
699#else 840#else
700 return getuid () != geteuid () 841 return getuid () != geteuid ()
701 || getgid () != getegid (); 842 || getgid () != getegid ();
702#endif 843#endif
703} 844}
704 845
705int 846unsigned int
706ev_method (EV_P) 847ev_supported_backends (void)
707{ 848{
708 return method; 849 unsigned int flags = 0;
709}
710 850
711static void 851 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
712loop_init (EV_P_ int methods) 852 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
853 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
854 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
855 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
856
857 return flags;
858}
859
860unsigned int
861ev_recommended_backends (void)
713{ 862{
714 if (!method) 863 unsigned int flags = ev_supported_backends ();
864
865#ifndef __NetBSD__
866 /* kqueue is borked on everything but netbsd apparently */
867 /* it usually doesn't work correctly on anything but sockets and pipes */
868 flags &= ~EVBACKEND_KQUEUE;
869#endif
870#ifdef __APPLE__
871 // flags &= ~EVBACKEND_KQUEUE; for documentation
872 flags &= ~EVBACKEND_POLL;
873#endif
874
875 return flags;
876}
877
878unsigned int
879ev_embeddable_backends (void)
880{
881 return EVBACKEND_EPOLL
882 | EVBACKEND_KQUEUE
883 | EVBACKEND_PORT;
884}
885
886unsigned int
887ev_backend (EV_P)
888{
889 return backend;
890}
891
892static void noinline
893loop_init (EV_P_ unsigned int flags)
894{
895 if (!backend)
715 { 896 {
716#if EV_USE_MONOTONIC 897#if EV_USE_MONOTONIC
717 { 898 {
718 struct timespec ts; 899 struct timespec ts;
719 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 900 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
720 have_monotonic = 1; 901 have_monotonic = 1;
721 } 902 }
722#endif 903#endif
723 904
724 rt_now = ev_time (); 905 ev_rt_now = ev_time ();
725 mn_now = get_clock (); 906 mn_now = get_clock ();
726 now_floor = mn_now; 907 now_floor = mn_now;
727 rtmn_diff = rt_now - mn_now; 908 rtmn_diff = ev_rt_now - mn_now;
728 909
729 if (methods == EVMETHOD_AUTO) 910 if (!(flags & EVFLAG_NOENV)
730 if (!enable_secure () && getenv ("LIBEV_METHODS")) 911 && !enable_secure ()
912 && getenv ("LIBEV_FLAGS"))
731 methods = atoi (getenv ("LIBEV_METHODS")); 913 flags = atoi (getenv ("LIBEV_FLAGS"));
732 else
733 methods = EVMETHOD_ANY;
734 914
735 method = 0; 915 if (!(flags & 0x0000ffffUL))
916 flags |= ev_recommended_backends ();
917
918 backend = 0;
919 backend_fd = -1;
736#if EV_USE_WIN32 920#if EV_USE_INOTIFY
737 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 921 fs_fd = -2;
922#endif
923
924#if EV_USE_PORT
925 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
738#endif 926#endif
739#if EV_USE_KQUEUE 927#if EV_USE_KQUEUE
740 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 928 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
741#endif 929#endif
742#if EV_USE_EPOLL 930#if EV_USE_EPOLL
743 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 931 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
744#endif 932#endif
745#if EV_USE_POLL 933#if EV_USE_POLL
746 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 934 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
747#endif 935#endif
748#if EV_USE_SELECT 936#if EV_USE_SELECT
749 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 937 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
750#endif 938#endif
751 939
752 ev_watcher_init (&sigev, sigcb); 940 ev_init (&sigev, sigcb);
753 ev_set_priority (&sigev, EV_MAXPRI); 941 ev_set_priority (&sigev, EV_MAXPRI);
754 } 942 }
755} 943}
756 944
757void 945static void noinline
758loop_destroy (EV_P) 946loop_destroy (EV_P)
759{ 947{
760 int i; 948 int i;
761 949
762#if EV_USE_WIN32 950#if EV_USE_INOTIFY
763 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 951 if (fs_fd >= 0)
952 close (fs_fd);
953#endif
954
955 if (backend_fd >= 0)
956 close (backend_fd);
957
958#if EV_USE_PORT
959 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
764#endif 960#endif
765#if EV_USE_KQUEUE 961#if EV_USE_KQUEUE
766 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 962 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
767#endif 963#endif
768#if EV_USE_EPOLL 964#if EV_USE_EPOLL
769 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 965 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
770#endif 966#endif
771#if EV_USE_POLL 967#if EV_USE_POLL
772 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 968 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
773#endif 969#endif
774#if EV_USE_SELECT 970#if EV_USE_SELECT
775 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 971 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
776#endif 972#endif
777 973
778 for (i = NUMPRI; i--; ) 974 for (i = NUMPRI; i--; )
779 array_free (pending, [i]); 975 array_free (pending, [i]);
780 976
781 /* have to use the microsoft-never-gets-it-right macro */ 977 /* have to use the microsoft-never-gets-it-right macro */
782 array_free_microshit (fdchange); 978 array_free (fdchange, EMPTY0);
783 array_free_microshit (timer); 979 array_free (timer, EMPTY0);
784 array_free_microshit (periodic); 980#if EV_PERIODIC_ENABLE
785 array_free_microshit (idle); 981 array_free (periodic, EMPTY0);
786 array_free_microshit (prepare); 982#endif
787 array_free_microshit (check); 983 array_free (idle, EMPTY0);
984 array_free (prepare, EMPTY0);
985 array_free (check, EMPTY0);
788 986
789 method = 0; 987 backend = 0;
790} 988}
791 989
792static void 990void inline_size infy_fork (EV_P);
991
992void inline_size
793loop_fork (EV_P) 993loop_fork (EV_P)
794{ 994{
995#if EV_USE_PORT
996 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
997#endif
998#if EV_USE_KQUEUE
999 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1000#endif
795#if EV_USE_EPOLL 1001#if EV_USE_EPOLL
796 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1002 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
797#endif 1003#endif
798#if EV_USE_KQUEUE 1004#if EV_USE_INOTIFY
799 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1005 infy_fork (EV_A);
800#endif 1006#endif
801 1007
802 if (ev_is_active (&sigev)) 1008 if (ev_is_active (&sigev))
803 { 1009 {
804 /* default loop */ 1010 /* default loop */
… …
817 postfork = 0; 1023 postfork = 0;
818} 1024}
819 1025
820#if EV_MULTIPLICITY 1026#if EV_MULTIPLICITY
821struct ev_loop * 1027struct ev_loop *
822ev_loop_new (int methods) 1028ev_loop_new (unsigned int flags)
823{ 1029{
824 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1030 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
825 1031
826 memset (loop, 0, sizeof (struct ev_loop)); 1032 memset (loop, 0, sizeof (struct ev_loop));
827 1033
828 loop_init (EV_A_ methods); 1034 loop_init (EV_A_ flags);
829 1035
830 if (ev_method (EV_A)) 1036 if (ev_backend (EV_A))
831 return loop; 1037 return loop;
832 1038
833 return 0; 1039 return 0;
834} 1040}
835 1041
… …
848 1054
849#endif 1055#endif
850 1056
851#if EV_MULTIPLICITY 1057#if EV_MULTIPLICITY
852struct ev_loop * 1058struct ev_loop *
1059ev_default_loop_init (unsigned int flags)
853#else 1060#else
854int 1061int
1062ev_default_loop (unsigned int flags)
855#endif 1063#endif
856ev_default_loop (int methods)
857{ 1064{
858 if (sigpipe [0] == sigpipe [1]) 1065 if (sigpipe [0] == sigpipe [1])
859 if (pipe (sigpipe)) 1066 if (pipe (sigpipe))
860 return 0; 1067 return 0;
861 1068
862 if (!default_loop) 1069 if (!ev_default_loop_ptr)
863 { 1070 {
864#if EV_MULTIPLICITY 1071#if EV_MULTIPLICITY
865 struct ev_loop *loop = default_loop = &default_loop_struct; 1072 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
866#else 1073#else
867 default_loop = 1; 1074 ev_default_loop_ptr = 1;
868#endif 1075#endif
869 1076
870 loop_init (EV_A_ methods); 1077 loop_init (EV_A_ flags);
871 1078
872 if (ev_method (EV_A)) 1079 if (ev_backend (EV_A))
873 { 1080 {
874 siginit (EV_A); 1081 siginit (EV_A);
875 1082
876#ifndef WIN32 1083#ifndef _WIN32
877 ev_signal_init (&childev, childcb, SIGCHLD); 1084 ev_signal_init (&childev, childcb, SIGCHLD);
878 ev_set_priority (&childev, EV_MAXPRI); 1085 ev_set_priority (&childev, EV_MAXPRI);
879 ev_signal_start (EV_A_ &childev); 1086 ev_signal_start (EV_A_ &childev);
880 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1087 ev_unref (EV_A); /* child watcher should not keep loop alive */
881#endif 1088#endif
882 } 1089 }
883 else 1090 else
884 default_loop = 0; 1091 ev_default_loop_ptr = 0;
885 } 1092 }
886 1093
887 return default_loop; 1094 return ev_default_loop_ptr;
888} 1095}
889 1096
890void 1097void
891ev_default_destroy (void) 1098ev_default_destroy (void)
892{ 1099{
893#if EV_MULTIPLICITY 1100#if EV_MULTIPLICITY
894 struct ev_loop *loop = default_loop; 1101 struct ev_loop *loop = ev_default_loop_ptr;
895#endif 1102#endif
896 1103
897#ifndef WIN32 1104#ifndef _WIN32
898 ev_ref (EV_A); /* child watcher */ 1105 ev_ref (EV_A); /* child watcher */
899 ev_signal_stop (EV_A_ &childev); 1106 ev_signal_stop (EV_A_ &childev);
900#endif 1107#endif
901 1108
902 ev_ref (EV_A); /* signal watcher */ 1109 ev_ref (EV_A); /* signal watcher */
… …
910 1117
911void 1118void
912ev_default_fork (void) 1119ev_default_fork (void)
913{ 1120{
914#if EV_MULTIPLICITY 1121#if EV_MULTIPLICITY
915 struct ev_loop *loop = default_loop; 1122 struct ev_loop *loop = ev_default_loop_ptr;
916#endif 1123#endif
917 1124
918 if (method) 1125 if (backend)
919 postfork = 1; 1126 postfork = 1;
920} 1127}
921 1128
922/*****************************************************************************/ 1129/*****************************************************************************/
923 1130
924static int 1131int inline_size
925any_pending (EV_P) 1132any_pending (EV_P)
926{ 1133{
927 int pri; 1134 int pri;
928 1135
929 for (pri = NUMPRI; pri--; ) 1136 for (pri = NUMPRI; pri--; )
… …
931 return 1; 1138 return 1;
932 1139
933 return 0; 1140 return 0;
934} 1141}
935 1142
936static void 1143void inline_speed
937call_pending (EV_P) 1144call_pending (EV_P)
938{ 1145{
939 int pri; 1146 int pri;
940 1147
941 for (pri = NUMPRI; pri--; ) 1148 for (pri = NUMPRI; pri--; )
942 while (pendingcnt [pri]) 1149 while (pendingcnt [pri])
943 { 1150 {
944 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1151 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
945 1152
946 if (p->w) 1153 if (expect_true (p->w))
947 { 1154 {
1155 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1156
948 p->w->pending = 0; 1157 p->w->pending = 0;
949 p->w->cb (EV_A_ p->w, p->events); 1158 EV_CB_INVOKE (p->w, p->events);
950 } 1159 }
951 } 1160 }
952} 1161}
953 1162
954static void 1163void inline_size
955timers_reify (EV_P) 1164timers_reify (EV_P)
956{ 1165{
957 while (timercnt && ((WT)timers [0])->at <= mn_now) 1166 while (timercnt && ((WT)timers [0])->at <= mn_now)
958 { 1167 {
959 struct ev_timer *w = timers [0]; 1168 ev_timer *w = timers [0];
960 1169
961 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1170 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
962 1171
963 /* first reschedule or stop timer */ 1172 /* first reschedule or stop timer */
964 if (w->repeat) 1173 if (w->repeat)
965 { 1174 {
966 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1175 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1176
967 ((WT)w)->at = mn_now + w->repeat; 1177 ((WT)w)->at += w->repeat;
1178 if (((WT)w)->at < mn_now)
1179 ((WT)w)->at = mn_now;
1180
968 downheap ((WT *)timers, timercnt, 0); 1181 downheap ((WT *)timers, timercnt, 0);
969 } 1182 }
970 else 1183 else
971 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1184 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
972 1185
973 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1186 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
974 } 1187 }
975} 1188}
976 1189
977static void 1190#if EV_PERIODIC_ENABLE
1191void inline_size
978periodics_reify (EV_P) 1192periodics_reify (EV_P)
979{ 1193{
980 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1194 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
981 { 1195 {
982 struct ev_periodic *w = periodics [0]; 1196 ev_periodic *w = periodics [0];
983 1197
984 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1198 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
985 1199
986 /* first reschedule or stop timer */ 1200 /* first reschedule or stop timer */
987 if (w->reschedule_cb) 1201 if (w->reschedule_cb)
988 { 1202 {
989 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); 1203 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
990
991 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); 1204 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
992 downheap ((WT *)periodics, periodiccnt, 0); 1205 downheap ((WT *)periodics, periodiccnt, 0);
993 } 1206 }
994 else if (w->interval) 1207 else if (w->interval)
995 { 1208 {
996 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1209 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
997 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1210 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
998 downheap ((WT *)periodics, periodiccnt, 0); 1211 downheap ((WT *)periodics, periodiccnt, 0);
999 } 1212 }
1000 else 1213 else
1001 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1214 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1002 1215
1003 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1216 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1004 } 1217 }
1005} 1218}
1006 1219
1007static void 1220static void noinline
1008periodics_reschedule (EV_P) 1221periodics_reschedule (EV_P)
1009{ 1222{
1010 int i; 1223 int i;
1011 1224
1012 /* adjust periodics after time jump */ 1225 /* adjust periodics after time jump */
1013 for (i = 0; i < periodiccnt; ++i) 1226 for (i = 0; i < periodiccnt; ++i)
1014 { 1227 {
1015 struct ev_periodic *w = periodics [i]; 1228 ev_periodic *w = periodics [i];
1016 1229
1017 if (w->reschedule_cb) 1230 if (w->reschedule_cb)
1018 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1231 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1019 else if (w->interval) 1232 else if (w->interval)
1020 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1233 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1021 } 1234 }
1022 1235
1023 /* now rebuild the heap */ 1236 /* now rebuild the heap */
1024 for (i = periodiccnt >> 1; i--; ) 1237 for (i = periodiccnt >> 1; i--; )
1025 downheap ((WT *)periodics, periodiccnt, i); 1238 downheap ((WT *)periodics, periodiccnt, i);
1026} 1239}
1240#endif
1027 1241
1028inline int 1242int inline_size
1029time_update_monotonic (EV_P) 1243time_update_monotonic (EV_P)
1030{ 1244{
1031 mn_now = get_clock (); 1245 mn_now = get_clock ();
1032 1246
1033 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1247 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1034 { 1248 {
1035 rt_now = rtmn_diff + mn_now; 1249 ev_rt_now = rtmn_diff + mn_now;
1036 return 0; 1250 return 0;
1037 } 1251 }
1038 else 1252 else
1039 { 1253 {
1040 now_floor = mn_now; 1254 now_floor = mn_now;
1041 rt_now = ev_time (); 1255 ev_rt_now = ev_time ();
1042 return 1; 1256 return 1;
1043 } 1257 }
1044} 1258}
1045 1259
1046static void 1260void inline_size
1047time_update (EV_P) 1261time_update (EV_P)
1048{ 1262{
1049 int i; 1263 int i;
1050 1264
1051#if EV_USE_MONOTONIC 1265#if EV_USE_MONOTONIC
… …
1053 { 1267 {
1054 if (time_update_monotonic (EV_A)) 1268 if (time_update_monotonic (EV_A))
1055 { 1269 {
1056 ev_tstamp odiff = rtmn_diff; 1270 ev_tstamp odiff = rtmn_diff;
1057 1271
1058 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1272 /* loop a few times, before making important decisions.
1273 * on the choice of "4": one iteration isn't enough,
1274 * in case we get preempted during the calls to
1275 * ev_time and get_clock. a second call is almost guarenteed
1276 * to succeed in that case, though. and looping a few more times
1277 * doesn't hurt either as we only do this on time-jumps or
1278 * in the unlikely event of getting preempted here.
1279 */
1280 for (i = 4; --i; )
1059 { 1281 {
1060 rtmn_diff = rt_now - mn_now; 1282 rtmn_diff = ev_rt_now - mn_now;
1061 1283
1062 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1284 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1063 return; /* all is well */ 1285 return; /* all is well */
1064 1286
1065 rt_now = ev_time (); 1287 ev_rt_now = ev_time ();
1066 mn_now = get_clock (); 1288 mn_now = get_clock ();
1067 now_floor = mn_now; 1289 now_floor = mn_now;
1068 } 1290 }
1069 1291
1292# if EV_PERIODIC_ENABLE
1070 periodics_reschedule (EV_A); 1293 periodics_reschedule (EV_A);
1294# endif
1071 /* no timer adjustment, as the monotonic clock doesn't jump */ 1295 /* no timer adjustment, as the monotonic clock doesn't jump */
1072 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1296 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1073 } 1297 }
1074 } 1298 }
1075 else 1299 else
1076#endif 1300#endif
1077 { 1301 {
1078 rt_now = ev_time (); 1302 ev_rt_now = ev_time ();
1079 1303
1080 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1304 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1081 { 1305 {
1306#if EV_PERIODIC_ENABLE
1082 periodics_reschedule (EV_A); 1307 periodics_reschedule (EV_A);
1308#endif
1083 1309
1084 /* adjust timers. this is easy, as the offset is the same for all */ 1310 /* adjust timers. this is easy, as the offset is the same for all */
1085 for (i = 0; i < timercnt; ++i) 1311 for (i = 0; i < timercnt; ++i)
1086 ((WT)timers [i])->at += rt_now - mn_now; 1312 ((WT)timers [i])->at += ev_rt_now - mn_now;
1087 } 1313 }
1088 1314
1089 mn_now = rt_now; 1315 mn_now = ev_rt_now;
1090 } 1316 }
1091} 1317}
1092 1318
1093void 1319void
1094ev_ref (EV_P) 1320ev_ref (EV_P)
… …
1105static int loop_done; 1331static int loop_done;
1106 1332
1107void 1333void
1108ev_loop (EV_P_ int flags) 1334ev_loop (EV_P_ int flags)
1109{ 1335{
1110 double block;
1111 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1336 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1337 ? EVUNLOOP_ONE
1338 : EVUNLOOP_CANCEL;
1112 1339
1113 do 1340 while (activecnt)
1114 { 1341 {
1342 /* we might have forked, so reify kernel state if necessary */
1343 #if EV_FORK_ENABLE
1344 if (expect_false (postfork))
1345 if (forkcnt)
1346 {
1347 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1348 call_pending (EV_A);
1349 }
1350 #endif
1351
1115 /* queue check watchers (and execute them) */ 1352 /* queue check watchers (and execute them) */
1116 if (expect_false (preparecnt)) 1353 if (expect_false (preparecnt))
1117 { 1354 {
1118 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1355 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1119 call_pending (EV_A); 1356 call_pending (EV_A);
… …
1125 1362
1126 /* update fd-related kernel structures */ 1363 /* update fd-related kernel structures */
1127 fd_reify (EV_A); 1364 fd_reify (EV_A);
1128 1365
1129 /* calculate blocking time */ 1366 /* calculate blocking time */
1367 {
1368 double block;
1130 1369
1131 /* we only need this for !monotonic clock or timers, but as we basically 1370 if (flags & EVLOOP_NONBLOCK || idlecnt)
1132 always have timers, we just calculate it always */ 1371 block = 0.; /* do not block at all */
1372 else
1373 {
1374 /* update time to cancel out callback processing overhead */
1133#if EV_USE_MONOTONIC 1375#if EV_USE_MONOTONIC
1134 if (expect_true (have_monotonic)) 1376 if (expect_true (have_monotonic))
1135 time_update_monotonic (EV_A); 1377 time_update_monotonic (EV_A);
1136 else 1378 else
1137#endif 1379#endif
1138 { 1380 {
1139 rt_now = ev_time (); 1381 ev_rt_now = ev_time ();
1140 mn_now = rt_now; 1382 mn_now = ev_rt_now;
1141 } 1383 }
1142 1384
1143 if (flags & EVLOOP_NONBLOCK || idlecnt)
1144 block = 0.;
1145 else
1146 {
1147 block = MAX_BLOCKTIME; 1385 block = MAX_BLOCKTIME;
1148 1386
1149 if (timercnt) 1387 if (timercnt)
1150 { 1388 {
1151 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1389 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1152 if (block > to) block = to; 1390 if (block > to) block = to;
1153 } 1391 }
1154 1392
1393#if EV_PERIODIC_ENABLE
1155 if (periodiccnt) 1394 if (periodiccnt)
1156 { 1395 {
1157 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1396 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1158 if (block > to) block = to; 1397 if (block > to) block = to;
1159 } 1398 }
1399#endif
1160 1400
1161 if (block < 0.) block = 0.; 1401 if (expect_false (block < 0.)) block = 0.;
1162 } 1402 }
1163 1403
1164 method_poll (EV_A_ block); 1404 backend_poll (EV_A_ block);
1405 }
1165 1406
1166 /* update rt_now, do magic */ 1407 /* update ev_rt_now, do magic */
1167 time_update (EV_A); 1408 time_update (EV_A);
1168 1409
1169 /* queue pending timers and reschedule them */ 1410 /* queue pending timers and reschedule them */
1170 timers_reify (EV_A); /* relative timers called last */ 1411 timers_reify (EV_A); /* relative timers called last */
1412#if EV_PERIODIC_ENABLE
1171 periodics_reify (EV_A); /* absolute timers called first */ 1413 periodics_reify (EV_A); /* absolute timers called first */
1414#endif
1172 1415
1173 /* queue idle watchers unless io or timers are pending */ 1416 /* queue idle watchers unless other events are pending */
1174 if (idlecnt && !any_pending (EV_A)) 1417 if (idlecnt && !any_pending (EV_A))
1175 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1418 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1176 1419
1177 /* queue check watchers, to be executed first */ 1420 /* queue check watchers, to be executed first */
1178 if (checkcnt) 1421 if (expect_false (checkcnt))
1179 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1422 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1180 1423
1181 call_pending (EV_A); 1424 call_pending (EV_A);
1182 }
1183 while (activecnt && !loop_done);
1184 1425
1185 if (loop_done != 2) 1426 if (expect_false (loop_done))
1186 loop_done = 0; 1427 break;
1428 }
1429
1430 if (loop_done == EVUNLOOP_ONE)
1431 loop_done = EVUNLOOP_CANCEL;
1187} 1432}
1188 1433
1189void 1434void
1190ev_unloop (EV_P_ int how) 1435ev_unloop (EV_P_ int how)
1191{ 1436{
1192 loop_done = how; 1437 loop_done = how;
1193} 1438}
1194 1439
1195/*****************************************************************************/ 1440/*****************************************************************************/
1196 1441
1197inline void 1442void inline_size
1198wlist_add (WL *head, WL elem) 1443wlist_add (WL *head, WL elem)
1199{ 1444{
1200 elem->next = *head; 1445 elem->next = *head;
1201 *head = elem; 1446 *head = elem;
1202} 1447}
1203 1448
1204inline void 1449void inline_size
1205wlist_del (WL *head, WL elem) 1450wlist_del (WL *head, WL elem)
1206{ 1451{
1207 while (*head) 1452 while (*head)
1208 { 1453 {
1209 if (*head == elem) 1454 if (*head == elem)
… …
1214 1459
1215 head = &(*head)->next; 1460 head = &(*head)->next;
1216 } 1461 }
1217} 1462}
1218 1463
1219inline void 1464void inline_speed
1220ev_clear_pending (EV_P_ W w) 1465ev_clear_pending (EV_P_ W w)
1221{ 1466{
1222 if (w->pending) 1467 if (w->pending)
1223 { 1468 {
1224 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1469 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1225 w->pending = 0; 1470 w->pending = 0;
1226 } 1471 }
1227} 1472}
1228 1473
1229inline void 1474void inline_speed
1230ev_start (EV_P_ W w, int active) 1475ev_start (EV_P_ W w, int active)
1231{ 1476{
1232 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1477 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1233 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1478 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1234 1479
1235 w->active = active; 1480 w->active = active;
1236 ev_ref (EV_A); 1481 ev_ref (EV_A);
1237} 1482}
1238 1483
1239inline void 1484void inline_size
1240ev_stop (EV_P_ W w) 1485ev_stop (EV_P_ W w)
1241{ 1486{
1242 ev_unref (EV_A); 1487 ev_unref (EV_A);
1243 w->active = 0; 1488 w->active = 0;
1244} 1489}
1245 1490
1246/*****************************************************************************/ 1491/*****************************************************************************/
1247 1492
1248void 1493void
1249ev_io_start (EV_P_ struct ev_io *w) 1494ev_io_start (EV_P_ ev_io *w)
1250{ 1495{
1251 int fd = w->fd; 1496 int fd = w->fd;
1252 1497
1253 if (ev_is_active (w)) 1498 if (expect_false (ev_is_active (w)))
1254 return; 1499 return;
1255 1500
1256 assert (("ev_io_start called with negative fd", fd >= 0)); 1501 assert (("ev_io_start called with negative fd", fd >= 0));
1257 1502
1258 ev_start (EV_A_ (W)w, 1); 1503 ev_start (EV_A_ (W)w, 1);
… …
1261 1506
1262 fd_change (EV_A_ fd); 1507 fd_change (EV_A_ fd);
1263} 1508}
1264 1509
1265void 1510void
1266ev_io_stop (EV_P_ struct ev_io *w) 1511ev_io_stop (EV_P_ ev_io *w)
1267{ 1512{
1268 ev_clear_pending (EV_A_ (W)w); 1513 ev_clear_pending (EV_A_ (W)w);
1269 if (!ev_is_active (w)) 1514 if (expect_false (!ev_is_active (w)))
1270 return; 1515 return;
1516
1517 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1271 1518
1272 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1519 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1273 ev_stop (EV_A_ (W)w); 1520 ev_stop (EV_A_ (W)w);
1274 1521
1275 fd_change (EV_A_ w->fd); 1522 fd_change (EV_A_ w->fd);
1276} 1523}
1277 1524
1278void 1525void
1279ev_timer_start (EV_P_ struct ev_timer *w) 1526ev_timer_start (EV_P_ ev_timer *w)
1280{ 1527{
1281 if (ev_is_active (w)) 1528 if (expect_false (ev_is_active (w)))
1282 return; 1529 return;
1283 1530
1284 ((WT)w)->at += mn_now; 1531 ((WT)w)->at += mn_now;
1285 1532
1286 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1533 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1287 1534
1288 ev_start (EV_A_ (W)w, ++timercnt); 1535 ev_start (EV_A_ (W)w, ++timercnt);
1289 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1536 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1290 timers [timercnt - 1] = w; 1537 timers [timercnt - 1] = w;
1291 upheap ((WT *)timers, timercnt - 1); 1538 upheap ((WT *)timers, timercnt - 1);
1292 1539
1540 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1541}
1542
1543void
1544ev_timer_stop (EV_P_ ev_timer *w)
1545{
1546 ev_clear_pending (EV_A_ (W)w);
1547 if (expect_false (!ev_is_active (w)))
1548 return;
1549
1293 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1550 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1294}
1295 1551
1296void 1552 {
1297ev_timer_stop (EV_P_ struct ev_timer *w) 1553 int active = ((W)w)->active;
1298{
1299 ev_clear_pending (EV_A_ (W)w);
1300 if (!ev_is_active (w))
1301 return;
1302 1554
1303 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1555 if (expect_true (--active < --timercnt))
1304
1305 if (((W)w)->active < timercnt--)
1306 { 1556 {
1307 timers [((W)w)->active - 1] = timers [timercnt]; 1557 timers [active] = timers [timercnt];
1308 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1558 adjustheap ((WT *)timers, timercnt, active);
1309 } 1559 }
1560 }
1310 1561
1311 ((WT)w)->at = w->repeat; 1562 ((WT)w)->at -= mn_now;
1312 1563
1313 ev_stop (EV_A_ (W)w); 1564 ev_stop (EV_A_ (W)w);
1314} 1565}
1315 1566
1316void 1567void
1317ev_timer_again (EV_P_ struct ev_timer *w) 1568ev_timer_again (EV_P_ ev_timer *w)
1318{ 1569{
1319 if (ev_is_active (w)) 1570 if (ev_is_active (w))
1320 { 1571 {
1321 if (w->repeat) 1572 if (w->repeat)
1322 { 1573 {
1323 ((WT)w)->at = mn_now + w->repeat; 1574 ((WT)w)->at = mn_now + w->repeat;
1324 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1575 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1325 } 1576 }
1326 else 1577 else
1327 ev_timer_stop (EV_A_ w); 1578 ev_timer_stop (EV_A_ w);
1328 } 1579 }
1329 else if (w->repeat) 1580 else if (w->repeat)
1581 {
1582 w->at = w->repeat;
1330 ev_timer_start (EV_A_ w); 1583 ev_timer_start (EV_A_ w);
1584 }
1331} 1585}
1332 1586
1587#if EV_PERIODIC_ENABLE
1333void 1588void
1334ev_periodic_start (EV_P_ struct ev_periodic *w) 1589ev_periodic_start (EV_P_ ev_periodic *w)
1335{ 1590{
1336 if (ev_is_active (w)) 1591 if (expect_false (ev_is_active (w)))
1337 return; 1592 return;
1338 1593
1339 if (w->reschedule_cb) 1594 if (w->reschedule_cb)
1340 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1595 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1341 else if (w->interval) 1596 else if (w->interval)
1342 { 1597 {
1343 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1598 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1344 /* this formula differs from the one in periodic_reify because we do not always round up */ 1599 /* this formula differs from the one in periodic_reify because we do not always round up */
1345 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1600 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1346 } 1601 }
1347 1602
1348 ev_start (EV_A_ (W)w, ++periodiccnt); 1603 ev_start (EV_A_ (W)w, ++periodiccnt);
1349 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1604 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1350 periodics [periodiccnt - 1] = w; 1605 periodics [periodiccnt - 1] = w;
1351 upheap ((WT *)periodics, periodiccnt - 1); 1606 upheap ((WT *)periodics, periodiccnt - 1);
1352 1607
1608 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1609}
1610
1611void
1612ev_periodic_stop (EV_P_ ev_periodic *w)
1613{
1614 ev_clear_pending (EV_A_ (W)w);
1615 if (expect_false (!ev_is_active (w)))
1616 return;
1617
1353 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1618 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1354}
1355 1619
1356void 1620 {
1357ev_periodic_stop (EV_P_ struct ev_periodic *w) 1621 int active = ((W)w)->active;
1358{
1359 ev_clear_pending (EV_A_ (W)w);
1360 if (!ev_is_active (w))
1361 return;
1362 1622
1363 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1623 if (expect_true (--active < --periodiccnt))
1364
1365 if (((W)w)->active < periodiccnt--)
1366 { 1624 {
1367 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1625 periodics [active] = periodics [periodiccnt];
1368 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1626 adjustheap ((WT *)periodics, periodiccnt, active);
1369 } 1627 }
1628 }
1370 1629
1371 ev_stop (EV_A_ (W)w); 1630 ev_stop (EV_A_ (W)w);
1372} 1631}
1373 1632
1374void 1633void
1375ev_periodic_again (EV_P_ struct ev_periodic *w) 1634ev_periodic_again (EV_P_ ev_periodic *w)
1376{ 1635{
1636 /* TODO: use adjustheap and recalculation */
1377 ev_periodic_stop (EV_A_ w); 1637 ev_periodic_stop (EV_A_ w);
1378 ev_periodic_start (EV_A_ w); 1638 ev_periodic_start (EV_A_ w);
1379} 1639}
1380 1640#endif
1381void
1382ev_idle_start (EV_P_ struct ev_idle *w)
1383{
1384 if (ev_is_active (w))
1385 return;
1386
1387 ev_start (EV_A_ (W)w, ++idlecnt);
1388 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1389 idles [idlecnt - 1] = w;
1390}
1391
1392void
1393ev_idle_stop (EV_P_ struct ev_idle *w)
1394{
1395 ev_clear_pending (EV_A_ (W)w);
1396 if (ev_is_active (w))
1397 return;
1398
1399 idles [((W)w)->active - 1] = idles [--idlecnt];
1400 ev_stop (EV_A_ (W)w);
1401}
1402
1403void
1404ev_prepare_start (EV_P_ struct ev_prepare *w)
1405{
1406 if (ev_is_active (w))
1407 return;
1408
1409 ev_start (EV_A_ (W)w, ++preparecnt);
1410 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1411 prepares [preparecnt - 1] = w;
1412}
1413
1414void
1415ev_prepare_stop (EV_P_ struct ev_prepare *w)
1416{
1417 ev_clear_pending (EV_A_ (W)w);
1418 if (ev_is_active (w))
1419 return;
1420
1421 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1422 ev_stop (EV_A_ (W)w);
1423}
1424
1425void
1426ev_check_start (EV_P_ struct ev_check *w)
1427{
1428 if (ev_is_active (w))
1429 return;
1430
1431 ev_start (EV_A_ (W)w, ++checkcnt);
1432 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1433 checks [checkcnt - 1] = w;
1434}
1435
1436void
1437ev_check_stop (EV_P_ struct ev_check *w)
1438{
1439 ev_clear_pending (EV_A_ (W)w);
1440 if (ev_is_active (w))
1441 return;
1442
1443 checks [((W)w)->active - 1] = checks [--checkcnt];
1444 ev_stop (EV_A_ (W)w);
1445}
1446 1641
1447#ifndef SA_RESTART 1642#ifndef SA_RESTART
1448# define SA_RESTART 0 1643# define SA_RESTART 0
1449#endif 1644#endif
1450 1645
1451void 1646void
1452ev_signal_start (EV_P_ struct ev_signal *w) 1647ev_signal_start (EV_P_ ev_signal *w)
1453{ 1648{
1454#if EV_MULTIPLICITY 1649#if EV_MULTIPLICITY
1455 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1650 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1456#endif 1651#endif
1457 if (ev_is_active (w)) 1652 if (expect_false (ev_is_active (w)))
1458 return; 1653 return;
1459 1654
1460 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1655 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1461 1656
1462 ev_start (EV_A_ (W)w, 1); 1657 ev_start (EV_A_ (W)w, 1);
1463 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1658 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1464 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1659 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1465 1660
1466 if (!((WL)w)->next) 1661 if (!((WL)w)->next)
1467 { 1662 {
1468#if WIN32 1663#if _WIN32
1469 signal (w->signum, sighandler); 1664 signal (w->signum, sighandler);
1470#else 1665#else
1471 struct sigaction sa; 1666 struct sigaction sa;
1472 sa.sa_handler = sighandler; 1667 sa.sa_handler = sighandler;
1473 sigfillset (&sa.sa_mask); 1668 sigfillset (&sa.sa_mask);
… …
1476#endif 1671#endif
1477 } 1672 }
1478} 1673}
1479 1674
1480void 1675void
1481ev_signal_stop (EV_P_ struct ev_signal *w) 1676ev_signal_stop (EV_P_ ev_signal *w)
1482{ 1677{
1483 ev_clear_pending (EV_A_ (W)w); 1678 ev_clear_pending (EV_A_ (W)w);
1484 if (!ev_is_active (w)) 1679 if (expect_false (!ev_is_active (w)))
1485 return; 1680 return;
1486 1681
1487 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1682 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1488 ev_stop (EV_A_ (W)w); 1683 ev_stop (EV_A_ (W)w);
1489 1684
1490 if (!signals [w->signum - 1].head) 1685 if (!signals [w->signum - 1].head)
1491 signal (w->signum, SIG_DFL); 1686 signal (w->signum, SIG_DFL);
1492} 1687}
1493 1688
1494void 1689void
1495ev_child_start (EV_P_ struct ev_child *w) 1690ev_child_start (EV_P_ ev_child *w)
1496{ 1691{
1497#if EV_MULTIPLICITY 1692#if EV_MULTIPLICITY
1498 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1693 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1499#endif 1694#endif
1500 if (ev_is_active (w)) 1695 if (expect_false (ev_is_active (w)))
1501 return; 1696 return;
1502 1697
1503 ev_start (EV_A_ (W)w, 1); 1698 ev_start (EV_A_ (W)w, 1);
1504 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1699 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1505} 1700}
1506 1701
1507void 1702void
1508ev_child_stop (EV_P_ struct ev_child *w) 1703ev_child_stop (EV_P_ ev_child *w)
1509{ 1704{
1510 ev_clear_pending (EV_A_ (W)w); 1705 ev_clear_pending (EV_A_ (W)w);
1511 if (ev_is_active (w)) 1706 if (expect_false (!ev_is_active (w)))
1512 return; 1707 return;
1513 1708
1514 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1709 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1515 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1516} 1711}
1517 1712
1713#if EV_STAT_ENABLE
1714
1715# ifdef _WIN32
1716# undef lstat
1717# define lstat(a,b) _stati64 (a,b)
1718# endif
1719
1720#define DEF_STAT_INTERVAL 5.0074891
1721#define MIN_STAT_INTERVAL 0.1074891
1722
1723void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1724
1725#if EV_USE_INOTIFY
1726# define EV_INOTIFY_BUFSIZE 8192
1727
1728static void noinline
1729infy_add (EV_P_ ev_stat *w)
1730{
1731 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
1732
1733 if (w->wd < 0)
1734 {
1735 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1736
1737 /* monitor some parent directory for speedup hints */
1738 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1739 {
1740 char path [4096];
1741 strcpy (path, w->path);
1742
1743 do
1744 {
1745 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1746 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1747
1748 char *pend = strrchr (path, '/');
1749
1750 if (!pend)
1751 break; /* whoops, no '/', complain to your admin */
1752
1753 *pend = 0;
1754 w->wd = inotify_add_watch (fs_fd, path, mask);
1755 }
1756 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1757 }
1758 }
1759 else
1760 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1761
1762 if (w->wd >= 0)
1763 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1764}
1765
1766static void noinline
1767infy_del (EV_P_ ev_stat *w)
1768{
1769 int slot;
1770 int wd = w->wd;
1771
1772 if (wd < 0)
1773 return;
1774
1775 w->wd = -2;
1776 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1777 wlist_del (&fs_hash [slot].head, (WL)w);
1778
1779 /* remove this watcher, if others are watching it, they will rearm */
1780 inotify_rm_watch (fs_fd, wd);
1781}
1782
1783static void noinline
1784infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1785{
1786 if (slot < 0)
1787 /* overflow, need to check for all hahs slots */
1788 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1789 infy_wd (EV_A_ slot, wd, ev);
1790 else
1791 {
1792 WL w_;
1793
1794 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1795 {
1796 ev_stat *w = (ev_stat *)w_;
1797 w_ = w_->next; /* lets us remove this watcher and all before it */
1798
1799 if (w->wd == wd || wd == -1)
1800 {
1801 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1802 {
1803 w->wd = -1;
1804 infy_add (EV_A_ w); /* re-add, no matter what */
1805 }
1806
1807 stat_timer_cb (EV_A_ &w->timer, 0);
1808 }
1809 }
1810 }
1811}
1812
1813static void
1814infy_cb (EV_P_ ev_io *w, int revents)
1815{
1816 char buf [EV_INOTIFY_BUFSIZE];
1817 struct inotify_event *ev = (struct inotify_event *)buf;
1818 int ofs;
1819 int len = read (fs_fd, buf, sizeof (buf));
1820
1821 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1822 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1823}
1824
1825void inline_size
1826infy_init (EV_P)
1827{
1828 if (fs_fd != -2)
1829 return;
1830
1831 fs_fd = inotify_init ();
1832
1833 if (fs_fd >= 0)
1834 {
1835 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1836 ev_set_priority (&fs_w, EV_MAXPRI);
1837 ev_io_start (EV_A_ &fs_w);
1838 }
1839}
1840
1841void inline_size
1842infy_fork (EV_P)
1843{
1844 int slot;
1845
1846 if (fs_fd < 0)
1847 return;
1848
1849 close (fs_fd);
1850 fs_fd = inotify_init ();
1851
1852 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1853 {
1854 WL w_ = fs_hash [slot].head;
1855 fs_hash [slot].head = 0;
1856
1857 while (w_)
1858 {
1859 ev_stat *w = (ev_stat *)w_;
1860 w_ = w_->next; /* lets us add this watcher */
1861
1862 w->wd = -1;
1863
1864 if (fs_fd >= 0)
1865 infy_add (EV_A_ w); /* re-add, no matter what */
1866 else
1867 ev_timer_start (EV_A_ &w->timer);
1868 }
1869
1870 }
1871}
1872
1873#endif
1874
1875void
1876ev_stat_stat (EV_P_ ev_stat *w)
1877{
1878 if (lstat (w->path, &w->attr) < 0)
1879 w->attr.st_nlink = 0;
1880 else if (!w->attr.st_nlink)
1881 w->attr.st_nlink = 1;
1882}
1883
1884void noinline
1885stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1886{
1887 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1888
1889 /* we copy this here each the time so that */
1890 /* prev has the old value when the callback gets invoked */
1891 w->prev = w->attr;
1892 ev_stat_stat (EV_A_ w);
1893
1894 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1895 {
1896 #if EV_USE_INOTIFY
1897 infy_del (EV_A_ w);
1898 infy_add (EV_A_ w);
1899 ev_stat_stat (EV_A_ w); /* avoid race... */
1900 #endif
1901
1902 ev_feed_event (EV_A_ w, EV_STAT);
1903 }
1904}
1905
1906void
1907ev_stat_start (EV_P_ ev_stat *w)
1908{
1909 if (expect_false (ev_is_active (w)))
1910 return;
1911
1912 /* since we use memcmp, we need to clear any padding data etc. */
1913 memset (&w->prev, 0, sizeof (ev_statdata));
1914 memset (&w->attr, 0, sizeof (ev_statdata));
1915
1916 ev_stat_stat (EV_A_ w);
1917
1918 if (w->interval < MIN_STAT_INTERVAL)
1919 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1920
1921 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1922 ev_set_priority (&w->timer, ev_priority (w));
1923
1924#if EV_USE_INOTIFY
1925 infy_init (EV_A);
1926
1927 if (fs_fd >= 0)
1928 infy_add (EV_A_ w);
1929 else
1930#endif
1931 ev_timer_start (EV_A_ &w->timer);
1932
1933 ev_start (EV_A_ (W)w, 1);
1934}
1935
1936void
1937ev_stat_stop (EV_P_ ev_stat *w)
1938{
1939 ev_clear_pending (EV_A_ (W)w);
1940 if (expect_false (!ev_is_active (w)))
1941 return;
1942
1943#if EV_USE_INOTIFY
1944 infy_del (EV_A_ w);
1945#endif
1946 ev_timer_stop (EV_A_ &w->timer);
1947
1948 ev_stop (EV_A_ (W)w);
1949}
1950#endif
1951
1952void
1953ev_idle_start (EV_P_ ev_idle *w)
1954{
1955 if (expect_false (ev_is_active (w)))
1956 return;
1957
1958 ev_start (EV_A_ (W)w, ++idlecnt);
1959 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1960 idles [idlecnt - 1] = w;
1961}
1962
1963void
1964ev_idle_stop (EV_P_ ev_idle *w)
1965{
1966 ev_clear_pending (EV_A_ (W)w);
1967 if (expect_false (!ev_is_active (w)))
1968 return;
1969
1970 {
1971 int active = ((W)w)->active;
1972 idles [active - 1] = idles [--idlecnt];
1973 ((W)idles [active - 1])->active = active;
1974 }
1975
1976 ev_stop (EV_A_ (W)w);
1977}
1978
1979void
1980ev_prepare_start (EV_P_ ev_prepare *w)
1981{
1982 if (expect_false (ev_is_active (w)))
1983 return;
1984
1985 ev_start (EV_A_ (W)w, ++preparecnt);
1986 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1987 prepares [preparecnt - 1] = w;
1988}
1989
1990void
1991ev_prepare_stop (EV_P_ ev_prepare *w)
1992{
1993 ev_clear_pending (EV_A_ (W)w);
1994 if (expect_false (!ev_is_active (w)))
1995 return;
1996
1997 {
1998 int active = ((W)w)->active;
1999 prepares [active - 1] = prepares [--preparecnt];
2000 ((W)prepares [active - 1])->active = active;
2001 }
2002
2003 ev_stop (EV_A_ (W)w);
2004}
2005
2006void
2007ev_check_start (EV_P_ ev_check *w)
2008{
2009 if (expect_false (ev_is_active (w)))
2010 return;
2011
2012 ev_start (EV_A_ (W)w, ++checkcnt);
2013 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2014 checks [checkcnt - 1] = w;
2015}
2016
2017void
2018ev_check_stop (EV_P_ ev_check *w)
2019{
2020 ev_clear_pending (EV_A_ (W)w);
2021 if (expect_false (!ev_is_active (w)))
2022 return;
2023
2024 {
2025 int active = ((W)w)->active;
2026 checks [active - 1] = checks [--checkcnt];
2027 ((W)checks [active - 1])->active = active;
2028 }
2029
2030 ev_stop (EV_A_ (W)w);
2031}
2032
2033#if EV_EMBED_ENABLE
2034void noinline
2035ev_embed_sweep (EV_P_ ev_embed *w)
2036{
2037 ev_loop (w->loop, EVLOOP_NONBLOCK);
2038}
2039
2040static void
2041embed_cb (EV_P_ ev_io *io, int revents)
2042{
2043 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2044
2045 if (ev_cb (w))
2046 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2047 else
2048 ev_embed_sweep (loop, w);
2049}
2050
2051void
2052ev_embed_start (EV_P_ ev_embed *w)
2053{
2054 if (expect_false (ev_is_active (w)))
2055 return;
2056
2057 {
2058 struct ev_loop *loop = w->loop;
2059 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2060 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2061 }
2062
2063 ev_set_priority (&w->io, ev_priority (w));
2064 ev_io_start (EV_A_ &w->io);
2065
2066 ev_start (EV_A_ (W)w, 1);
2067}
2068
2069void
2070ev_embed_stop (EV_P_ ev_embed *w)
2071{
2072 ev_clear_pending (EV_A_ (W)w);
2073 if (expect_false (!ev_is_active (w)))
2074 return;
2075
2076 ev_io_stop (EV_A_ &w->io);
2077
2078 ev_stop (EV_A_ (W)w);
2079}
2080#endif
2081
2082#if EV_FORK_ENABLE
2083void
2084ev_fork_start (EV_P_ ev_fork *w)
2085{
2086 if (expect_false (ev_is_active (w)))
2087 return;
2088
2089 ev_start (EV_A_ (W)w, ++forkcnt);
2090 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2091 forks [forkcnt - 1] = w;
2092}
2093
2094void
2095ev_fork_stop (EV_P_ ev_fork *w)
2096{
2097 ev_clear_pending (EV_A_ (W)w);
2098 if (expect_false (!ev_is_active (w)))
2099 return;
2100
2101 {
2102 int active = ((W)w)->active;
2103 forks [active - 1] = forks [--forkcnt];
2104 ((W)forks [active - 1])->active = active;
2105 }
2106
2107 ev_stop (EV_A_ (W)w);
2108}
2109#endif
2110
1518/*****************************************************************************/ 2111/*****************************************************************************/
1519 2112
1520struct ev_once 2113struct ev_once
1521{ 2114{
1522 struct ev_io io; 2115 ev_io io;
1523 struct ev_timer to; 2116 ev_timer to;
1524 void (*cb)(int revents, void *arg); 2117 void (*cb)(int revents, void *arg);
1525 void *arg; 2118 void *arg;
1526}; 2119};
1527 2120
1528static void 2121static void
… …
1537 2130
1538 cb (revents, arg); 2131 cb (revents, arg);
1539} 2132}
1540 2133
1541static void 2134static void
1542once_cb_io (EV_P_ struct ev_io *w, int revents) 2135once_cb_io (EV_P_ ev_io *w, int revents)
1543{ 2136{
1544 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2137 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1545} 2138}
1546 2139
1547static void 2140static void
1548once_cb_to (EV_P_ struct ev_timer *w, int revents) 2141once_cb_to (EV_P_ ev_timer *w, int revents)
1549{ 2142{
1550 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2143 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1551} 2144}
1552 2145
1553void 2146void
1554ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2147ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1555{ 2148{
1556 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2149 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1557 2150
1558 if (!once) 2151 if (expect_false (!once))
2152 {
1559 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2153 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1560 else 2154 return;
1561 { 2155 }
2156
1562 once->cb = cb; 2157 once->cb = cb;
1563 once->arg = arg; 2158 once->arg = arg;
1564 2159
1565 ev_watcher_init (&once->io, once_cb_io); 2160 ev_init (&once->io, once_cb_io);
1566 if (fd >= 0) 2161 if (fd >= 0)
1567 { 2162 {
1568 ev_io_set (&once->io, fd, events); 2163 ev_io_set (&once->io, fd, events);
1569 ev_io_start (EV_A_ &once->io); 2164 ev_io_start (EV_A_ &once->io);
1570 } 2165 }
1571 2166
1572 ev_watcher_init (&once->to, once_cb_to); 2167 ev_init (&once->to, once_cb_to);
1573 if (timeout >= 0.) 2168 if (timeout >= 0.)
1574 { 2169 {
1575 ev_timer_set (&once->to, timeout, 0.); 2170 ev_timer_set (&once->to, timeout, 0.);
1576 ev_timer_start (EV_A_ &once->to); 2171 ev_timer_start (EV_A_ &once->to);
1577 }
1578 } 2172 }
1579} 2173}
1580 2174
2175#ifdef __cplusplus
2176}
2177#endif
2178

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